diff --git a/hwe/ts/SammoRootAPI.ts b/hwe/ts/SammoRootAPI.ts
index 4bcf5b7c..0d3284c0 100644
--- a/hwe/ts/SammoRootAPI.ts
+++ b/hwe/ts/SammoRootAPI.ts
@@ -4,6 +4,11 @@ import { callSammoAPI, extractHttpMethod, GET, POST, type APICallT, type APITail
 export type { ValidResponse, InvalidResponse };
 
 const apiRealPath = {
+    Admin: {
+        BanEmailAddress: POST as APICallT<{
+            email: string,
+        }>
+    },
     Login: {
         LoginByID: POST as APICallT<{
             username: string,
diff --git a/src/sammo/API/Admin/BanEmailAddress.php b/src/sammo/API/Admin/BanEmailAddress.php
new file mode 100644
index 00000000..945469ff
--- /dev/null
+++ b/src/sammo/API/Admin/BanEmailAddress.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace sammo\API\Login;
+
+use sammo\Session;
+use DateTimeInterface;
+use sammo\BaseAPI;
+use sammo\Enums\APIRecoveryType;
+use sammo\RootDB;
+use sammo\TimeUtil;
+use sammo\Validator;
+
+class BanEmailAddress extends \sammo\BaseAPI
+{
+    public function validateArgs(): ?string
+    {
+        $v = new Validator($this->args);
+        $v
+            ->rule('required', [
+                'email',
+            ]);
+
+        if (!$v->validate()) {
+            return $v->errorStr();
+        }
+        return null;
+    }
+
+    public function getRequiredSessionMode(): int
+    {
+        return BaseAPI::REQ_LOGIN | BaseAPI::REQ_READ_ONLY;
+    }
+
+    public function launch(Session $session, ?DateTimeInterface $modifiedSince, ?string $reqEtag): null | string | array | APIRecoveryType
+    {
+        $RootDB = RootDB::db();
+        $email = $this->args['email'];
+
+        if ($session->userGrade < 5) {
+            return '권한이 없습니다.';
+        }
+        $globalSalt = RootDB::getGlobalSalt();
+
+        try{
+            $RootDB->insert('banned_member', [
+                'hashed_email' => hash('sha512', $globalSalt.$email.$globalSalt),
+                'info' => TimeUtil::now(),
+            ]);
+        }
+        catch(\Exception $e){
+            return '이미 등록된 이메일입니다.';
+        }
+
+        return [
+            'result' => true,
+            'reason' => '등록되었습니다.'
+        ];
+    }
+}